Yeah, it's a long way to fall. But so far he's quite sedate in bed. He does all the bed jumping on our bed (people probably have broken bone stories from letting their kid jump on the bed too hehe) so I'm not concerned about him fooling around up there.

i think it might be worth a try just to gauge how he behaves up there. If there's anythng that makes me nervous then we can just separate the beds.